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Implementation of a fast time-domain processor for FMCW synthetic aperture radar data

 
: Frioud, M.; Wellig, P.; Stanko, S.; Meier, E.

:

Notarnicola, C. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.; European Association of Remote Sensing Companies -EARSC-:
SAR image analysis, modeling, and techniques XV : 23 - 24 September 2015, Toulouse, France
Bellingham, WA: SPIE, 2015 (Proceedings of SPIE 9642)
ISBN: 978-1-62841-852-1
Paper 96420B, 8 pp.
Conference "SAR Image Analysis, Modeling, and Techniques" <15, 2015, Toulouse>
English
Conference Paper
Fraunhofer FHR ()

Abstract
For the purpose of getting sensitive information relevant to civil or military security, high-resolution airborne Synthetic Aperture Radar (SAR) provides the possibility to organize missions at short notice regardless of the daylight and of the weather conditions. The use of compact millimeter-wave FMCW SAR systems allows reaching these goals more safely and at lower cost using unmanned lightweight platforms. As a counterpart these platforms are relatively unstable, making the data-processing more difficult. In order to reach optimum focusing quality also in unfavorable flight conditions or for highly non-linear tracks we developed a fast Time-Domain Processor that relies on parallelization using the GPU resources. A production areal processing rate as high as 6 km(2)/h using 20 cm ground pixel spacing on a single PC station was achieved. The processing quality and efficiency is demonstrated using real data from the MIRANDA35 Ka-band SAR system.

: http://publica.fraunhofer.de/documents/N-382359.html